W.W.&F. Discussion Forum

The Maine Narrow Gauges (Historic & Preserved) => Maine Narrow Gauge RR Co. & Museum => Topic started by: Ira Schreiber on August 27, 2008, 06:51:29 PM

Title: Engine #1
Post by: Ira Schreiber on August 27, 2008, 06:51:29 PM
This afternoon on the 2PM run, the prime mover (Cummins diesel) of GE #1 had an internal failure.
Diesel #11 took over the 4PM run. No word yet on what happened other than it is sidelined.
Title: Re: Engine #1
Post by: Pete "Cosmo" Barrington on August 27, 2008, 10:26:47 PM
 >:( :(  Bummah!
Title: Re: Engine #1
Post by: Hans Brandes on August 28, 2008, 07:41:46 PM
At this point we have had a mechanic take a preliminary look at it. Not good. #1 could be done for quite awhile until volunteered labor is available to fix this. The cost for the parts alone could be significant.
Title: Re: Engine #1
Post by: Hans Brandes on September 05, 2008, 06:20:59 AM
A little more news on this topic. We are currently making multiple inquiries in preparation for possible replacement of the motor. What is in there now is a 1948 Cummins NH 6 cylinder diesel. Parts for it are basically non-existent. It was repaired a few years ago but never has worked efficiently, especially in winter.

Our goal is to have it back in service by Thanksgiving for track plowing, switching and other duties for Polar Express.
Title: Re: Engine #1
Post by: Brendan Barry on September 05, 2008, 09:14:57 AM
htbrandes check your pm's
Title: Re: Engine #1
Post by: Ira Schreiber on September 05, 2008, 11:00:57 AM
According to the GE builders plate, #1 was constructed in 1949.
The NH series Cummins were used in many buses in the 40's and 50's.
I know Crown Coach used  NH Cummins up thru the 1970's.
You might check West Coast bus collectors/vendors for the required parts, even though NLA from Cummins.
A popular conversion was to the Detroit Diesel 71 series, long out of production, too.
This may be the opportunity for a modern(parts available) engine transplant.

Ira Schreiber
a.k.a. Ashpit
Title: Re: Engine #1
Post by: Hans Brandes on September 06, 2008, 06:00:58 AM
The engine itself is serial number H-10844 built in 1948. We're in contact with multiple potential sources so that we can make a quick decision as soon as possible. We use #1 to plow and without that we would have to come up with an alternative that may not work as well.
Title: Re: Engine #1
Post by: Mike Fox on September 06, 2008, 02:13:50 PM
Detroit Diesel is on the other side of town. They must have a replacement in stock for it.
Title: Re: Engine #1
Post by: Ira Schreiber on September 06, 2008, 08:29:15 PM
Hans,
Contact me off list as I have a possible source for Cummins NH locomotive engines.
Ira
ischreiber@aol.com
Title: Re: Engine #1
Post by: Robert Hale on September 09, 2008, 04:10:13 PM
What happened to the engine? Throw a rod? Spin a bearing? Have you looked into what other Cummins engines have the same bolt pattern or very close to the OEM engine? Just curious and I am trying to get details/specs on this loco.

Rob
Title: Re: Engine #1
Post by: Hans Brandes on October 13, 2008, 05:24:35 PM
All,

Thanks for the multiple replies with helpful leads. Here is where we are at:

- #1 spun a bearing on the #3 piston rod. This was easy to tell by the looseness and lack of oil when we took off the oil pan. We put a micrometer on it and found it to be .017 under which means it could be ground if necessary as bearings can be bought up to .040 under.

- We are going to take a look at the crankshaft on the second engine that is now on the flat car next to #1. If it is in good shape and has all the same specs then we may go with that instead of grinding the current shaft. This we will determine at our next work session on the 18th.

- The engine that we received is a 'cousin' with a different head and water leg. This presents difficulties in making it fit under the existing hood due to clearances and different air intake configuration.

- Regardless, we plan to install new journal and main bearings so that we can have a sound operating engine that holds oil pressure.

- Pray for good weather as we are working outdoors.
Title: Re: Engine #1
Post by: Mike the Choochoo Nix on October 18, 2008, 11:32:22 PM
Hi.
 You seem to have things well thought out and under control. but you might want to check out this link for parts.
http://www.agkits.com/Cummins-Engine-Rebuild-Kits-NT855.aspx

If you ever have to re-engine a locomotive remember that most truck and industrial engines use standard SAE bell-housing bolt patterns. 
http://www.garbee.net/~cabell/sae.htm

Good luck, hope everything goes ok.

Mike Nix
Title: Re: Engine #1
Post by: Hans Brandes on October 28, 2008, 12:45:53 PM
So far so good. A few of us worked double time last Friday and Saturday. The bell housing and flywheel matched right up to the replacement engine. Another piece of good news is that the exhaust manifold from the old motor fit on the replacement.

The replacement motor is now in place and we are working on attaching appliances in hopes of a test start soon. A long way to go but we have to get there as #1 is our only engine that can plow.
Title: Re: Engine #1
Post by: Hans Brandes on November 04, 2008, 01:29:55 PM
More progress made last Saturday. With new oil in the pan, the fuel line was hooked up and the exhaust manifold was put on. The battery was charged to allow us to see if it would fire up. At this point a couple of cylinders/valves need to be tuned. Regardless, by late in the afternoon, the start button was pushed. It turned and turned but just wasn't able to catch. That's OK as this allowed the oil to get pumped up into the rocker boxes and throughout the block. We think we just need a more charged up battery bank to get it going.

Work will continue on Thursday as the water portion has to be hooked up (pump, hoses, radiator). We're pushing hard to get done in the next couple of weeks.

Cross your fingers.
Title: Re: Engine #1
Post by: Hans Brandes on November 09, 2008, 07:29:49 PM
Thursday and Saturday were work days on #1. We continue to put appliances back on the engine. The fuel line, fuel pump and fuel return line are all hooked up. We are working on putting the pulleys on for the alternator, oil pump and water pump. Saturday we put the radiator back in place.

The engine has been successfully started but requires some adjustments. We still need to hook up the radiator and make sure that there is not any water leaking into the cylinders and oil pan. Once that is all done we will need to see how much power we have to the traction motors.

We only have 19 days to go until our first Polar Express. If we get any plowable snow before #1 is back in service we will have a problem.

The saga continues.
Title: Re: Engine #1
Post by: Hans Brandes on November 14, 2008, 01:32:19 PM
More work to be accomplished tomorrow. It would be great if we can get the engine going and determine if we can make electricity. Tomoorrow is also our day to brush flues on #4. This means that at least one of these projects is going to have to be done outside. Unfortunately, the weather is once again not looking to cooperate on a Saturday.

Stay tuned for an update later this weekend.
Title: Re: Engine #1
Post by: Hans Brandes on November 16, 2008, 05:59:54 PM
More days put in this past week. The radiator is now hooked back up and filled with water. Some custom piping had to be done to mate the upper connection of the radiator to the engine. The compression release lever and the throttle linkage were also hooked up. Both required some custom brazing and bending. When done, compression will be able to be done from inside of the cab instead of outside by reaching under the hood.

We found out that the governor on the fuel pump was broken. This was discovered when we started the engine and were not able to control the throttle. The only way to shut it off was by compression release or shutting off the fuel supply.

We are hoping once the governor is fixed that we are close to putting the hood back on. Then we hope that it makes electricity all the way down to the traction motors.
Title: Re: Engine #1
Post by: Mike Fox on November 16, 2008, 07:36:53 PM
Sounds like you guys are making great progress. I hope the ground stays bare until it's ready. Was this a used engine you replaced it with? And any idea how many hours is on it since a rebuild?
Title: Re: Engine #1
Post by: Hans Brandes on November 19, 2008, 01:37:13 PM
The 'new' engine is a 1963. Number of hours unknown but purported to be low. Right now we are hoping to have a replacement fuel pump by Saturday so that it can go back on and then we can start up the engine again to see if it runs properly and makes electricity.

Another update to follow after this weekend.
Title: Re: Engine #1
Post by: Hans Brandes on November 24, 2008, 06:06:52 PM
We made great strides this past Saturday. A working fuel pump was found and was bolted on. A rod was fabricated so that we can now hold the decompression lever open from inside the cab while starting (much improved over the old method of standing outside and reaching in under the hood right next to the fan).

Then...we started it up. This time it came alive and did not race. The throttle was functional. So now we had a running engine but not hooked up to the muffler (can you say loud). Good fortune struck when were were able to contact Mark Hall (our boom truck owner) who had just gone to Peaks Island. He came back into Portland and met us as the sun was going down. We proceeded to put the hood back on and connect the exhaust under flashlight. It started back up and sounded quite nice. Access plate and louver panel were then installed. It now runs up and down the track.

So we are now down to reconnecting the lights, the bell, the horn and the plow. Hope to have this done this week.
Title: Re: Engine #1
Post by: John McNamara on November 24, 2008, 06:58:15 PM
Congratulations! Can't have only the steam aficionados celebrating the rebirth of a locomotive ;)
Title: Re: Engine #1
Post by: Mike Fox on November 24, 2008, 08:46:31 PM
Nice job. Hope it keeps on running.
Title: Re: Engine #1
Post by: Hans Brandes on November 30, 2008, 02:10:51 PM
As they say on TV: "Case Closed".

Yesterday, a kill switch was put on, the idle was tuned and some other adjustments were made. It purrs like a kitten with minimal exhaust. It also starts right up. We can even hold the decompression lever open from the cab. Lights, bell and horn are all in working order. Another test ride was done last night and it has plenty of power. Good thing it does not have a turbo as that would have been too much.

So a big step forward yesterday, #1 work, #7 boiler on its way to Alna and SR&RL 15 is back from Penobscot Lumber in Rockport. The #15 rebuild is a true carpentry masterpiece. We hope to have some pictures up soon. It still needs heat pipes and chair backs reinstalled.

- Hans
Title: Re: Engine #1
Post by: Ira Schreiber on November 30, 2008, 04:06:59 PM
Great going, Hans and crew. It is never fun to work under the sky in less than perfect conditions. All at MNGM who helped deserve a pat on the back and here's mine.
Ira Schreiber
Member MNGM